International numeral system — lesson. Mathematics CBSE, Class 6.

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The International number system is another method for representing numbers.

In International numbering system, to read the numbers easily different periods are formed. The periods used here are ones, thousand and millions etc.

The place values in the International system of numeration are Ones, Tens, Hundreds, Thousands, Ten Thousands, Hundred Thousands, Millions, Ten millions, and so on.

Example:

Consider the number

$618,509,372$ the place values of each digit are:

$2$ – Ones

$7$ – Tens

$3$ – Hundreds

$9$ – Thousands

$0$ – Ten Thousands

$5$ – Hundred Thousands

$8$ – Millions

$1$ – Ten millions

$6$ – Hundred millions

Let us go through the International numeral system place value tables:

Periods on Ones:

Place value	Hundreds	Tens	Ones
Number	$100$	$10$	$1$
Number of zeros	$2$	$1$	$0$

Periods on Thousands:

Place value	Hundred Thousands	Ten Thousands	Thousands
Number	$100000$	$10000$	$1000$
Number of zeros	$5$	$4$	$3$

Periods on Millions:

Place value	Hundred Million	Ten Million	Million
Number	$100000000$	$100000000$	$1000000$
Number of zeros	$8$	$7$	$6$

Periods on Billions:

Place value	Hundred Billion	Ten Billion	Billion
Number	$100000000000$	$10000000000$	$1000000000$
Number of zeros	$11$	$10$	$9$

Periods on Trillions:

Place value	Hundred Trillion	Ten Trillion	Trillion
Number	$100000000000000$	$10000000000000$	$1000000000000$
Number of zeros	$14$	$13$	$12$

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8. International numeral system

Theory: